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psemil

Outters4 and SH2-129 (Calamar and Flying Bat)

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I have imaged very dim nebulas, like Cocoon and Eagle Head, but I have never seen a nebula which is invisible in 30' subs... The first glimpse of this nebula are seen after 5 hours of integration.
The Ha nebula is a little brighter , but not as bright as expected so I found that showing details of it was never going to be easy.
I imaged most of the data in holiday in Greece, but because the moon during that span was decreasing from 80% to 20%, to make most of the clear sky, I imaged almost all Ha data with the moon low in the sky and the O3 data without the moon presence.

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If you have any suggestion about processing please let me know.

Thanks for watching

Emil

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Brilliant image Emil - 50 hours of data deserves a result like this.

 

Annie

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Over two days of exposure just melts my head. Stunning image and a target I've not even heard of. 

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Excellent image, I totally agree over the OU4 Oxygen component of this target.  I am still struggling with it even after 2 hours 50 minutes in 600 and 1200 secs binned Oiii - that's equivalent to 40 minutes unbinned subs, I am STILL only seeing the brightest bits of the Squid.

So looks like I have a fair few hours to go on your experience.

Carole 

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Very impressive image.

 

I have a similar amount of time on this object with 1800s subs as well, but my skies and processing skills mean I don't get anything near your image.

The O3 is not bad its the ha I am struggling with and I am going to give it another try.

 

My plan and suggestion is to get more data and see what the result is.

 

 

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Well done!

 

I've had a brief go at this.  I saw nothing at all with a 12nm filter and binned subs.  I've managed only 2 10 minute binned subs with a 3nm filter, and it is clearly there.  Unfortunately, it has now disappeared behind trees, so I will have to wait a few months before I have another go.

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That is stunning, Emil!

No suggestions about processing from me, except
could you maybe teach us a bit about it?

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Thanks a lot for your good words.

Yes this is a realy dificult nebula... 

Carole the bined exposure, is a good ideea. Because of the low brightness and high level of noise when streching I made a lot of noise reduction on the O3 channel. So the overal sharpness is similar to bined exposure.

Ibbo, Ruud, I processed the nebula after removing the stars, that is the only secret. It allowed me to extra strech the O3 Channel, adding that image to the less streched stars.

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